14389915 has 4 divisors (see below), whose sum is σ = 17267904. Its totient is φ = 11511928.

The previous prime is 14389913. The next prime is 14389919. The reversal of 14389915 is 51998341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14389915 - 2¹ = 14389913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14389913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438987 + ... + 1438996.

It is an arithmetic number, because the mean of its divisors is an integer number (4316976).

Almost surely, 2^14389915 is an apocalyptic number.

14389915 is a deficient number, since it is larger than the sum of its proper divisors (2877989).

14389915 is an equidigital number, since it uses as much as digits as its factorization.

14389915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877988.

The product of its digits is 38880, while the sum is 40.

The square root of 14389915 is about 3793.4041440374. The cubic root of 14389915 is about 243.2312711820.

The spelling of 14389915 in words is "fourteen million, three hundred eighty-nine thousand, nine hundred fifteen".